Yeah it does seem there is something in her story arc simply missing that she puts herself willingly into the beta role. Generally all of the companion interactions are severely lacking, since they do not react to the evolving relationship. Either they have not yet recorded all voicelines for Act I, or the budget constraints won't allow deeper conversation and changing tone with the companions. That is why I prefer text over voice. Text can explain everything fast, comprehensible and extensively while also being ridiculously cheap. Voice is, slow, lacking context, short and very expensive.
I agree with you, but you are forgetting one important detail as to why Larian went with fully voiced game, people nowadays seem to have a critical form of allergy when it comes to reading stuff themselves, which is why audiobooks are so popular nowadays (again, I prefer the feel of paper or actually reading through e-book pages myself, but we're a dying breed). But yeah, text can give so much nuance that a game such as this desperately needs, voice actors' performances are superb, not complaining about that... but having everything voiced? NWN2 was semi-voiced. Important NPCs and companions were fully voiced, while some of the less important NPCs had text. Shopkeepers had text. But we can't change Larian's mind now, can we?
